everyone but sakura had a dark past out of sasuke naruto sai kakashi sakura lol but man i feel sad for naruto never actually fitting in til he became a genin and sasuke finally became a pest to the akatsuki and they have to stop him then theres kakashi a jounin with the sharingan aided by yamato who can help control narutos raging past that has been becoming strounger and finally sai he killed his brother in the end of the book that they find i bet but you know whats weird they make the show seem like the answer is not obvious